1 files changed, 438 insertions, 0 deletions
diff --git a/media/libvpx/libvpx/test/vp8_datarate_test.cc b/media/libvpx/libvpx/test/vp8_datarate_test.cc
new file mode 100644
index 0000000000..aee27af66e
--- /dev/null
+++ b/media/libvpx/libvpx/test/vp8_datarate_test.cc
@@ -0,0 +1,438 @@
+/*
+ *  Copyright (c) 2012 The WebM project authors. All Rights Reserved.
+ *
+ *  Use of this source code is governed by a BSD-style license
+ *  that can be found in the LICENSE file in the root of the source
+ *  tree. An additional intellectual property rights grant can be found
+ *  in the file PATENTS.  All contributing project authors may
+ *  be found in the AUTHORS file in the root of the source tree.
+ */
+#include "./vpx_config.h"
+#include "third_party/googletest/src/include/gtest/gtest.h"
+#include "test/codec_factory.h"
+#include "test/encode_test_driver.h"
+#include "test/i420_video_source.h"
+#include "test/util.h"
+#include "test/y4m_video_source.h"
+#include "vpx/vpx_codec.h"
+
+namespace {
+
+class DatarateTestLarge
+    : public ::libvpx_test::EncoderTest,
+      public ::libvpx_test::CodecTestWith2Params<libvpx_test::TestMode, int> {
+ public:
+  DatarateTestLarge() : EncoderTest(GET_PARAM(0)) {}
+
+  ~DatarateTestLarge() override = default;
+
+ protected:
+  void SetUp() override {
+    InitializeConfig();
+    SetMode(GET_PARAM(1));
+    set_cpu_used_ = GET_PARAM(2);
+    ResetModel();
+  }
+
+  virtual void ResetModel() {
+    last_pts_ = 0;
+    bits_in_buffer_model_ = cfg_.rc_target_bitrate * cfg_.rc_buf_initial_sz;
+    frame_number_ = 0;
+    first_drop_ = 0;
+    bits_total_ = 0;
+    duration_ = 0.0;
+    denoiser_offon_test_ = 0;
+    denoiser_offon_period_ = -1;
+    gf_boost_ = 0;
+    use_roi_ = false;
+  }
+
+  void PreEncodeFrameHook(::libvpx_test::VideoSource *video,
+                          ::libvpx_test::Encoder *encoder) override {
+    if (video->frame() == 0) {
+      encoder->Control(VP8E_SET_NOISE_SENSITIVITY, denoiser_on_);
+      encoder->Control(VP8E_SET_CPUUSED, set_cpu_used_);
+      encoder->Control(VP8E_SET_GF_CBR_BOOST_PCT, gf_boost_);
+    }
+
+    if (use_roi_) {
+      encoder->Control(VP8E_SET_ROI_MAP, &roi_);
+    }
+
+    if (denoiser_offon_test_) {
+      ASSERT_GT(denoiser_offon_period_, 0)
+          << "denoiser_offon_period_ is not positive.";
+      if ((video->frame() + 1) % denoiser_offon_period_ == 0) {
+        // Flip denoiser_on_ periodically
+        denoiser_on_ ^= 1;
+      }
+      encoder->Control(VP8E_SET_NOISE_SENSITIVITY, denoiser_on_);
+    }
+
+    const vpx_rational_t tb = video->timebase();
+    timebase_ = static_cast<double>(tb.num) / tb.den;
+    duration_ = 0;
+  }
+
+  void FramePktHook(const vpx_codec_cx_pkt_t *pkt) override {
+    // Time since last timestamp = duration.
+    vpx_codec_pts_t duration = pkt->data.frame.pts - last_pts_;
+
+    // TODO(jimbankoski): Remove these lines when the issue:
+    // http://code.google.com/p/webm/issues/detail?id=496 is fixed.
+    // For now the codec assumes buffer starts at starting buffer rate
+    // plus one frame's time.
+    if (last_pts_ == 0) duration = 1;
+
+    // Add to the buffer the bits we'd expect from a constant bitrate server.
+    bits_in_buffer_model_ += static_cast<int64_t>(
+        duration * timebase_ * cfg_.rc_target_bitrate * 1000);
+
+    /* Test the buffer model here before subtracting the frame. Do so because
+     * the way the leaky bucket model works in libvpx is to allow the buffer to
+     * empty - and then stop showing frames until we've got enough bits to
+     * show one. As noted in comment below (issue 495), this does not currently
+     * apply to key frames. For now exclude key frames in condition below. */
+    const bool key_frame =
+        (pkt->data.frame.flags & VPX_FRAME_IS_KEY) ? true : false;
+    if (!key_frame) {
+      ASSERT_GE(bits_in_buffer_model_, 0)
+          << "Buffer Underrun at frame " << pkt->data.frame.pts;
+    }
+
+    const int64_t frame_size_in_bits = pkt->data.frame.sz * 8;
+
+    // Subtract from the buffer the bits associated with a played back frame.
+    bits_in_buffer_model_ -= frame_size_in_bits;
+
+    // Update the running total of bits for end of test datarate checks.
+    bits_total_ += frame_size_in_bits;
+
+    // If first drop not set and we have a drop set it to this time.
+    if (!first_drop_ && duration > 1) first_drop_ = last_pts_ + 1;
+
+    // Update the most recent pts.
+    last_pts_ = pkt->data.frame.pts;
+
+    // We update this so that we can calculate the datarate minus the last
+    // frame encoded in the file.
+    bits_in_last_frame_ = frame_size_in_bits;
+
+    ++frame_number_;
+  }
+
+  void EndPassHook() override {
+    if (bits_total_) {
+      const double file_size_in_kb = bits_total_ / 1000.;  // bits per kilobit
+
+      duration_ = (last_pts_ + 1) * timebase_;
+
+      // Effective file datarate includes the time spent prebuffering.
+      effective_datarate_ = (bits_total_ - bits_in_last_frame_) / 1000.0 /
+                            (cfg_.rc_buf_initial_sz / 1000.0 + duration_);
+
+      file_datarate_ = file_size_in_kb / duration_;
+    }
+  }
+
+  virtual void DenoiserLevelsTest() {
+    cfg_.rc_buf_initial_sz = 500;
+    cfg_.rc_dropframe_thresh = 1;
+    cfg_.rc_max_quantizer = 56;
+    cfg_.rc_end_usage = VPX_CBR;
+    ::libvpx_test::I420VideoSource video("hantro_collage_w352h288.yuv", 352,
+                                         288, 30, 1, 0, 140);
+    for (int j = 1; j < 5; ++j) {
+      // Run over the denoiser levels.
+      // For the temporal denoiser (#if CONFIG_TEMPORAL_DENOISING) the level j
+      // refers to the 4 denoiser modes: denoiserYonly, denoiserOnYUV,
+      // denoiserOnAggressive, and denoiserOnAdaptive.
+      denoiser_on_ = j;
+      cfg_.rc_target_bitrate = 300;
+      ResetModel();
+      ASSERT_NO_FATAL_FAILURE(RunLoop(&video));
+      ASSERT_GE(cfg_.rc_target_bitrate, effective_datarate_ * 0.95)
+          << " The datarate for the file exceeds the target!";
+
+      ASSERT_LE(cfg_.rc_target_bitrate, file_datarate_ * 1.4)
+          << " The datarate for the file missed the target!";
+    }
+  }
+
+  virtual void DenoiserOffOnTest() {
+    cfg_.rc_buf_initial_sz = 500;
+    cfg_.rc_dropframe_thresh = 1;
+    cfg_.rc_max_quantizer = 56;
+    cfg_.rc_end_usage = VPX_CBR;
+    ::libvpx_test::I420VideoSource video("hantro_collage_w352h288.yuv", 352,
+                                         288, 30, 1, 0, 299);
+    cfg_.rc_target_bitrate = 300;
+    ResetModel();
+    // The denoiser is off by default.
+    denoiser_on_ = 0;
+    // Set the offon test flag.
+    denoiser_offon_test_ = 1;
+    denoiser_offon_period_ = 100;
+    ASSERT_NO_FATAL_FAILURE(RunLoop(&video));
+    ASSERT_GE(cfg_.rc_target_bitrate, effective_datarate_ * 0.95)
+        << " The datarate for the file exceeds the target!";
+    ASSERT_LE(cfg_.rc_target_bitrate, file_datarate_ * 1.4)
+        << " The datarate for the file missed the target!";
+  }
+
+  virtual void BasicBufferModelTest() {
+    denoiser_on_ = 0;
+    cfg_.rc_buf_initial_sz = 500;
+    cfg_.rc_dropframe_thresh = 1;
+    cfg_.rc_max_quantizer = 56;
+    cfg_.rc_end_usage = VPX_CBR;
+    // 2 pass cbr datarate control has a bug hidden by the small # of
+    // frames selected in this encode. The problem is that even if the buffer is
+    // negative we produce a keyframe on a cutscene. Ignoring datarate
+    // constraints
+    // TODO(jimbankoski): ( Fix when issue
+    // http://code.google.com/p/webm/issues/detail?id=495 is addressed. )
+    ::libvpx_test::I420VideoSource video("hantro_collage_w352h288.yuv", 352,
+                                         288, 30, 1, 0, 140);
+
+    // There is an issue for low bitrates in real-time mode, where the
+    // effective_datarate slightly overshoots the target bitrate.
+    // This is same the issue as noted about (#495).
+    // TODO(jimbankoski/marpan): Update test to run for lower bitrates (< 100),
+    // when the issue is resolved.
+    for (int i = 100; i < 800; i += 200) {
+      cfg_.rc_target_bitrate = i;
+      ResetModel();
+      ASSERT_NO_FATAL_FAILURE(RunLoop(&video));
+      ASSERT_GE(cfg_.rc_target_bitrate, effective_datarate_ * 0.95)
+          << " The datarate for the file exceeds the target!";
+      ASSERT_LE(cfg_.rc_target_bitrate, file_datarate_ * 1.4)
+          << " The datarate for the file missed the target!";
+    }
+  }
+
+  virtual void ChangingDropFrameThreshTest() {
+    denoiser_on_ = 0;
+    cfg_.rc_buf_initial_sz = 500;
+    cfg_.rc_max_quantizer = 36;
+    cfg_.rc_end_usage = VPX_CBR;
+    cfg_.rc_target_bitrate = 200;
+    cfg_.kf_mode = VPX_KF_DISABLED;
+
+    const int frame_count = 40;
+    ::libvpx_test::I420VideoSource video("hantro_collage_w352h288.yuv", 352,
+                                         288, 30, 1, 0, frame_count);
+
+    // Here we check that the first dropped frame gets earlier and earlier
+    // as the drop frame threshold is increased.
+
+    const int kDropFrameThreshTestStep = 30;
+    vpx_codec_pts_t last_drop = frame_count;
+    for (int i = 1; i < 91; i += kDropFrameThreshTestStep) {
+      cfg_.rc_dropframe_thresh = i;
+      ResetModel();
+      ASSERT_NO_FATAL_FAILURE(RunLoop(&video));
+      ASSERT_LE(first_drop_, last_drop)
+          << " The first dropped frame for drop_thresh " << i
+          << " > first dropped frame for drop_thresh "
+          << i - kDropFrameThreshTestStep;
+      last_drop = first_drop_;
+    }
+  }
+
+  virtual void DropFramesMultiThreadsTest() {
+    denoiser_on_ = 0;
+    cfg_.rc_buf_initial_sz = 500;
+    cfg_.rc_dropframe_thresh = 30;
+    cfg_.rc_max_quantizer = 56;
+    cfg_.rc_end_usage = VPX_CBR;
+    cfg_.g_threads = 2;
+
+    ::libvpx_test::I420VideoSource video("hantro_collage_w352h288.yuv", 352,
+                                         288, 30, 1, 0, 140);
+    cfg_.rc_target_bitrate = 200;
+    ResetModel();
+    ASSERT_NO_FATAL_FAILURE(RunLoop(&video));
+    ASSERT_GE(cfg_.rc_target_bitrate, effective_datarate_ * 0.95)
+        << " The datarate for the file exceeds the target!";
+
+    ASSERT_LE(cfg_.rc_target_bitrate, file_datarate_ * 1.4)
+        << " The datarate for the file missed the target!";
+  }
+
+  vpx_codec_pts_t last_pts_;
+  int64_t bits_in_buffer_model_;
+  double timebase_;
+  int frame_number_;
+  vpx_codec_pts_t first_drop_;
+  int64_t bits_total_;
+  double duration_;
+  double file_datarate_;
+  double effective_datarate_;
+  int64_t bits_in_last_frame_;
+  int denoiser_on_;
+  int denoiser_offon_test_;
+  int denoiser_offon_period_;
+  int set_cpu_used_;
+  int gf_boost_;
+  bool use_roi_;
+  vpx_roi_map_t roi_;
+};
+
+#if CONFIG_TEMPORAL_DENOISING
+// Check basic datarate targeting, for a single bitrate, but loop over the
+// various denoiser settings.
+TEST_P(DatarateTestLarge, DenoiserLevels) { DenoiserLevelsTest(); }
+
+// Check basic datarate targeting, for a single bitrate, when denoiser is off
+// and on.
+TEST_P(DatarateTestLarge, DenoiserOffOn) { DenoiserOffOnTest(); }
+#endif  // CONFIG_TEMPORAL_DENOISING
+
+TEST_P(DatarateTestLarge, BasicBufferModel) { BasicBufferModelTest(); }
+
+TEST_P(DatarateTestLarge, ChangingDropFrameThresh) {
+  ChangingDropFrameThreshTest();
+}
+
+TEST_P(DatarateTestLarge, DropFramesMultiThreads) {
+  DropFramesMultiThreadsTest();
+}
+
+class DatarateTestRealTime : public DatarateTestLarge {
+ public:
+  ~DatarateTestRealTime() override = default;
+};
+
+#if CONFIG_TEMPORAL_DENOISING
+// Check basic datarate targeting, for a single bitrate, but loop over the
+// various denoiser settings.
+TEST_P(DatarateTestRealTime, DenoiserLevels) { DenoiserLevelsTest(); }
+
+// Check basic datarate targeting, for a single bitrate, when denoiser is off
+// and on.
+TEST_P(DatarateTestRealTime, DenoiserOffOn) {}
+#endif  // CONFIG_TEMPORAL_DENOISING
+
+TEST_P(DatarateTestRealTime, BasicBufferModel) { BasicBufferModelTest(); }
+
+TEST_P(DatarateTestRealTime, ChangingDropFrameThresh) {
+  ChangingDropFrameThreshTest();
+}
+
+TEST_P(DatarateTestRealTime, DropFramesMultiThreads) {
+  DropFramesMultiThreadsTest();
+}
+
+TEST_P(DatarateTestRealTime, RegionOfInterest) {
+  denoiser_on_ = 0;
+  cfg_.rc_buf_initial_sz = 500;
+  cfg_.rc_dropframe_thresh = 0;
+  cfg_.rc_max_quantizer = 56;
+  cfg_.rc_end_usage = VPX_CBR;
+  // Encode using multiple threads.
+  cfg_.g_threads = 2;
+
+  ::libvpx_test::I420VideoSource video("hantro_collage_w352h288.yuv", 352, 288,
+                                       30, 1, 0, 300);
+  cfg_.rc_target_bitrate = 450;
+  cfg_.g_w = 352;
+  cfg_.g_h = 288;
+
+  ResetModel();
+
+  // Set ROI parameters
+  use_roi_ = true;
+  memset(&roi_, 0, sizeof(roi_));
+
+  roi_.rows = (cfg_.g_h + 15) / 16;
+  roi_.cols = (cfg_.g_w + 15) / 16;
+
+  roi_.delta_q[0] = 0;
+  roi_.delta_q[1] = -20;
+  roi_.delta_q[2] = 0;
+  roi_.delta_q[3] = 0;
+
+  roi_.delta_lf[0] = 0;
+  roi_.delta_lf[1] = -20;
+  roi_.delta_lf[2] = 0;
+  roi_.delta_lf[3] = 0;
+
+  roi_.static_threshold[0] = 0;
+  roi_.static_threshold[1] = 1000;
+  roi_.static_threshold[2] = 0;
+  roi_.static_threshold[3] = 0;
+
+  // Use 2 states: 1 is center square, 0 is the rest.
+  roi_.roi_map =
+      (uint8_t *)calloc(roi_.rows * roi_.cols, sizeof(*roi_.roi_map));
+  for (unsigned int i = 0; i < roi_.rows; ++i) {
+    for (unsigned int j = 0; j < roi_.cols; ++j) {
+      if (i > (roi_.rows >> 2) && i < ((roi_.rows * 3) >> 2) &&
+          j > (roi_.cols >> 2) && j < ((roi_.cols * 3) >> 2)) {
+        roi_.roi_map[i * roi_.cols + j] = 1;
+      }
+    }
+  }
+
+  ASSERT_NO_FATAL_FAILURE(RunLoop(&video));
+  ASSERT_GE(cfg_.rc_target_bitrate, effective_datarate_ * 0.95)
+      << " The datarate for the file exceeds the target!";
+
+  ASSERT_LE(cfg_.rc_target_bitrate, file_datarate_ * 1.4)
+      << " The datarate for the file missed the target!";
+
+  free(roi_.roi_map);
+}
+
+TEST_P(DatarateTestRealTime, GFBoost) {
+  denoiser_on_ = 0;
+  cfg_.rc_buf_initial_sz = 500;
+  cfg_.rc_dropframe_thresh = 0;
+  cfg_.rc_max_quantizer = 56;
+  cfg_.rc_end_usage = VPX_CBR;
+  cfg_.g_error_resilient = 0;
+
+  ::libvpx_test::I420VideoSource video("hantro_collage_w352h288.yuv", 352, 288,
+                                       30, 1, 0, 300);
+  cfg_.rc_target_bitrate = 300;
+  ResetModel();
+  // Apply a gf boost.
+  gf_boost_ = 50;
+
+  ASSERT_NO_FATAL_FAILURE(RunLoop(&video));
+  ASSERT_GE(cfg_.rc_target_bitrate, effective_datarate_ * 0.95)
+      << " The datarate for the file exceeds the target!";
+
+  ASSERT_LE(cfg_.rc_target_bitrate, file_datarate_ * 1.4)
+      << " The datarate for the file missed the target!";
+}
+
+TEST_P(DatarateTestRealTime, NV12) {
+  denoiser_on_ = 0;
+  cfg_.rc_buf_initial_sz = 500;
+  cfg_.rc_dropframe_thresh = 0;
+  cfg_.rc_max_quantizer = 56;
+  cfg_.rc_end_usage = VPX_CBR;
+  cfg_.g_error_resilient = 0;
+  ::libvpx_test::YUVVideoSource video("hantro_collage_w352h288_nv12.yuv",
+                                      VPX_IMG_FMT_NV12, 352, 288, 30, 1, 0,
+                                      100);
+
+  cfg_.rc_target_bitrate = 200;
+  ResetModel();
+
+  ASSERT_NO_FATAL_FAILURE(RunLoop(&video));
+  ASSERT_GE(cfg_.rc_target_bitrate, effective_datarate_ * 0.95)
+      << " The datarate for the file exceeds the target!";
+
+  ASSERT_LE(cfg_.rc_target_bitrate, file_datarate_ * 1.4)
+      << " The datarate for the file missed the target!";
+}
+
+VP8_INSTANTIATE_TEST_SUITE(DatarateTestLarge, ALL_TEST_MODES,
+                           ::testing::Values(0));
+VP8_INSTANTIATE_TEST_SUITE(DatarateTestRealTime,
+                           ::testing::Values(::libvpx_test::kRealTime),
+                           ::testing::Values(-6, -12));
+}  // namespace